While the kiln is cold, dry, raw pots are packed into the Ware Chamber (3) the top of the kiln is closed off with a temporary dome of clay and straw (4), leaving small holes as exit flues. A small fire is then lit in the Fire Box (5) allowing hot gasses and flames to pass through into the combustion chamber (6) then up through the ware chamber. Starting slowly and steadily building up the fire the the pots are brought up to a temperature of between 8000 and 10000 Centigrade.
The first firing took many hours of constant stoking as we not only needed to fire the pots, but to dry out the structure of the kiln itself. Nevertheless we achieved a temperature of between 700 & 800 degrees Centigrade, hot enough to fire the kiln load which included two amphorae.
This type of kiln would have been used by potters working in this region, to manufacture coarse wares such as Black Burnished Ware and Gray Ware cooking pots, indented bakers, plates, bowls, flagons and the like. While fine wares such as Samian Ware, Terra Sigillata and the Aphorae that carried produce around the empire would have been imported from production sites in Gaul and elsewhere in the Roman World.
From now on I will be running regular Roman pottery workshops at Vindolanda where you will be able to learn the techniques and skills that went into making the ceramics of the Roman Empire. Workshops and courses will include: Kiln Building & Firing; Samian Ware; Barbotine Ware; Black Burnished Ware; Lamps & Goddesses; The Potters' Wheel, Roman Head Pots. For more information on these workshops, follow me on Twitter @PottedHistory, visit the Vindolanda website or email me email@example.com.
Visit my website at www.pottedhistory.co.uk